cmd: fuse: Add fuse writebuff sub-system command
Add CMD_FUSE_WRITEBUFF config option to add and enable fuse writebuff
sub-system command. Add fuse_writebuff function to be invoked on
writebuff command.
Signed-off-by: Harsha Vardhan V M <h-vm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index cd391d4..81c59be 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1236,6 +1236,14 @@
which control the behaviour of the device. The command uses the
fuse_...() API.
+config CMD_FUSE_WRITEBUFF
+ bool "Support for the fuse writebuff"
+ depends on CMD_FUSE
+ help
+ This allows programming fuses, which control the behaviour of
+ the device, using a structured buffer in memory. The command
+ uses the fuse_writebuff() API.
+
config CMD_GPIO
bool "gpio"
help
diff --git a/cmd/fuse.c b/cmd/fuse.c
index a23cedb..6c42c09 100644
--- a/cmd/fuse.c
+++ b/cmd/fuse.c
@@ -43,11 +43,18 @@
argc -= 2 + confirmed;
argv += 2 + confirmed;
- if (argc < 2)
- return CMD_RET_USAGE;
+ if (IS_ENABLED(CONFIG_CMD_FUSE_WRITEBUFF) && !strcmp(op, "writebuff")) {
+ if (argc == 1)
+ addr = simple_strtoul(argv[0], NULL, 16);
+ else
+ return CMD_RET_USAGE;
+ } else {
+ if (argc < 2)
+ return CMD_RET_USAGE;
- bank = simple_strtoul(argv[0], NULL, 0);
- word = simple_strtoul(argv[1], NULL, 0);
+ bank = simple_strtoul(argv[0], NULL, 0);
+ word = simple_strtoul(argv[1], NULL, 0);
+ }
if (!strcmp(op, "read")) {
if (argc == 2)
@@ -161,6 +168,15 @@
if (ret)
goto err;
}
+ } else if (IS_ENABLED(CONFIG_CMD_FUSE_WRITEBUFF) && !strcmp(op, "writebuff")) {
+ printf("Programming fuses using a structured buffer in memory "
+ "starting at addr 0x%lx\n", addr);
+ if (!confirmed && !confirm_prog())
+ return CMD_RET_FAILURE;
+
+ ret = fuse_writebuff(addr);
+ if (ret)
+ goto err;
} else {
return CMD_RET_USAGE;
}
@@ -186,5 +202,9 @@
"fuse prog [-y] <bank> <word> <hexval> [<hexval>...] - program 1 or\n"
" several fuse words, starting at 'word' (PERMANENT)\n"
"fuse override <bank> <word> <hexval> [<hexval>...] - override 1 or\n"
- " several fuse words, starting at 'word'"
+ " several fuse words, starting at 'word'\n"
+#ifdef CONFIG_CMD_FUSE_WRITEBUFF
+ "fuse writebuff [-y] <addr> - program fuse data\n"
+ " using a structured buffer in memory starting at 'addr'\n"
+#endif /* CONFIG_CMD_FUSE_WRITEBUFF */
);